I agree with what Robynbird said. Mostly, just let your feelings be. Don't try to talk yourself into liking a school. When you go on campus, you'll either love it, or you won't.
If you don't love a school, know that there are almost 3,000 colleges in the US alone. You will find one you like. Just be willing to keep looking. :)
As for my experience, I thought I would prefer a small, private school. I toured one and hated it though; it simply wasn't for me. Then I got on the campus of a huge public school in an urban environment, and absolutely loved it. The school is very involved in community service, too, which was important to me.
I'm starting there this fall, and couldn't be happier. :) Good luck with your search!